vegetation

UN-SPIDER published a new recommended practice in its Knowledge Portal outlining detailed step-by-step procedures to support drought monitoring. The practice was developed by researchers from the Federal University of Santa Maria in Brazil (UFSM). The procedure has been used to elaborate drought-related maps for Brazil in recent years.

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UN-SPIDER published a new recommended practice with detailed step-by-step procedures to support drought monitoring. The practice was developed by the Federal University of Santa Maria in Brazil (UFSM).

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UN-SPIDER news:

A study carried out by the University of Leicester has shown the amount of rainfall many African areas receive has drastically changed in the last ten years. It is an essential factor for vegetation, which plays a vital role in African livelihoods.

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What are vegetation indices used for?

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Data application of the month: Vegetation

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English

Vegetation indices derived from Earth observation satellites are important for wide range of applications such as vegetation monitoring, drought studies, agricultural activities, climate and hydrologic modeling. Vegetation monitoring plays an important role in drought early warning systems, which help to anticipate the risk of food crises at local and global scale.

Proba-V was launched in May 2014 and went operational in December. In the just two months of work, the ESA’s vegetation-monitoring Proba-V mini-satellite sent back over 5,000 images, 65 daily global maps and six 10-day global syntheses.

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A potential new ESAsatellite could use the fluorescence in plants to track health and productivity of vegetation worldwide. A likely candidate for the eighth ESA Earth Explorer, the Fluorescence Explorer (FLEX) would thus provide data for global maps of vegetation.

The Colombian Agustin Codazzi Geographic Institute - IGAC and their Center of Research and Development of Geographic Information – CIAF, recently did a series of projects based on risk management. One of those was focused on indentifying zones in the process of decertification using optical remote sensing in the Andean dry region of Villa de Leyva (Boyacá), Colombia.